1
Pedibus DevelopmentSponsored by Capital City Pedicab CompanyIn affiliation with the FSU and FAMU College of Engineering
Team 18:Andrew GalanJohn HasslerJames McCordOnyewuchi Ebere
Sponsor: Instructor: Ron Goldstein Dr. Kamal Amin
Faculty Advisors:Dr. Chiang ShihDr. Patrick Hollis
James McCord
2
Background The pedibus is a pedal-powered vehicle used for transportation
that seats a variety number of passengers depending on size.
The idea was developed to provide as an eco-friendly traveling entertainment center to attract people of all ages and professions.
Some models contain alcohol distribution consoles in the center.
Also referred to as the pedal crawler, pubcrawler, and party bike.
The pedibus has grown in popularity over the last five years.
James McCord
3
James McCord
Existing Models
4
Sponsor Ron Goldstein
Tallahassee Resident
Owner of Capitol City Pedicabs
Wants to manufacture the Pedibus for sale
James McCord
5
Final Design SelectionThe Pedibus is broken down into three main components
1. Structural frame 2. Steering and braking3. Power transmission
James McCord
6
Aluminum and Steel Initially we wanted to make a frame completely of Aluminum but
after further analysis and modeling we concluded a mixture of the two would result in the most strength to weight ratio.
Using a minimalistic lower base of two steel rectangular beams to support the majority of the weight and an aluminum substructure above that.
James McCord
7
Front Axle Decided on front end that included steering,
braking, and suspension.
Chose Mustang II IFS for its light weight and simplicity
James McCord
8
Drive Train Layout Peddling input
Turns the drive shaft
Drive shaft turns rear differential
Differential turns the tires
James McCord
9
Progress this semester Pulled the rear axle from 1992 Camaro from pick and pull
Gear ratio of 3.2:1 pick and pull
Used differential gear ratio to order bike parts
John Hassler
10
Progress this semester Met with the sponsors auto mechanic
Ordered mustang II Independent front suspension
Used suspension dimensions to make design changes to the aluminum cross members
John Hassler
11
Storage and manufacturing space We originally thought storage and build space was available through the sponsor
We were not aware we didn’t have build space until the beginning of this semester
Made contact with Bruce Batten the program manager for the advanced manufacturing facility at TCC
John Hassler
12
Initial assembly Steel support spacing at rear axle is too
narrow
Steel supports were redesigned to allow for wider spacing
John Hassler
13
Stress Testing 1” by 3” steel rectangular tubing 1/8”
thick looks bigger in 3d models than it does in reality
Bent slightly at the center between ¼” and ½”
Expected to be more rigid once the entire structural frame is assembled
If not rigid when fully assembled will weld tension rod across the bottom of the steel support
John Hassler
14
Changes To The Previous Design
The removal of power assistance mechanism
The redesign of the crank peddling station
Increase in the width of the chassis
Onyewuchi Ebere
15
New pedaling station Crank Design The new design incorporates a
means to adjust chain tension as the chain stretches.
The chain tensions are independent.
The initial design
The chain service life is prolonged
The chain that will be fitted need not be
same seize as others
The new designOnyewuchi Ebere
16
Removal Of Power Assistance
The cost to purchase the electric power assistance
system given in the budget was very high.
The implementation will not favor the project time.
There is provision for the installation at a later date if need be.
Onyewuchi Ebere
17
New seat post design
• The original design induced excessive stress on the aluminum cross member
• It was very difficult to achieve firm fitting since it does not have a collar
• Does not give room for maximum adjustment without deflection
Seat post
collar
Aluminum cross member
Seat post held with set screw
Aluminum cross member
The new seat design
The old design
Onyewuchi Ebere
18
Moving Pedibus From Garage To The Sport Centers
For the driver to be able to move the pedibus alone, we have included the housing for a dolly in the pedibus.
Like a cart and other non self powered vehicles the pedibus can be carried with any car by simply using the dolly
Onyewuchi Ebere
DOLLY
19
Challenges encountered so far The adverse weather due to the recent winter storm caused delay in
shipping the independent front suspension we have ordered.
Based on the last tracking updates all the seven packages containing the Independent front suspension IFS have been shipped and will arrive within the week.
Onyewuchi Ebere
Sample of the assembled ordered IFS
Budget
Andrew Galan
BOM # Price Per ItemSteel Supports 2 $69.00 $138.00Aluminum Frame 1 $389.00 $389.00Pillow Blocks 4 $30.00 $120.003/4 inch Cold Rolled Drive Shaft 1 $100.00 $100.00Mustang II Ifs 1 $1,350.00 $1,350.00Rear Axle and Differential 1 $140.00 $140.00Bike Crank 8 $45.00 $360.00Bike Seat 8 $17.00 $136.00Bike Chain 8 $30.00 $240.00Free Wheel gear 8 $25.00 $200.00Wheels 4 $104.00 $416.00Electric Motor & Controller 1 $880.00 $880.00Battery 1 $53.00 $53.00Lighting Kit 1 $170.00 $170.00total $4,602.00
New total for bike parts = $1,160.00
New total for metal = $475.00
New total for pedibus = $3,707.00
In The Future Expected to have access to building facility at TCC before the end of
the week. As soon as we have access we will transfer all our parts to the build location.
When Front end arrives deliver it to mechanic for assembly
When aluminum cross members are completed we will begin assembling the structural frame and installing the drive shaft and bicycle components.
Andrew Galan
22
In The FutureStretch goal of completing the pedibus by March 30 for spring time Tallahassee parade.
Must purchase parts for the roof.• Several roof designs have been proposed but sponsor has not picked one• All roofing materials can be sourced quickly locally• Roof design is largely cosmetic and has little effect on the performance of
the pedibus
23
Questions?
